D121212121213132333131232313232233131323223313231322331333132313233213231311   >>    D12121212121313233313123231323223313132322331323132233133313231323321323131   <<    D121212121213132333131232313232233131323223313231322331333132313233213231313   >>      D121212121213132333131232313232233131323223313231322331333132313233213231312   >>